opensolaris man page for mlib_videodct2x2_s16_s16

mlib_VideoDCT2x2_S16_S16(3MLIB) 			    mediaLib Library Functions				   mlib_VideoDCT2x2_S16_S16(3MLIB)

NAME
       mlib_VideoDCT2x2_S16_S16 - forward Discrete Cosine Transform (DCT)

SYNOPSIS
       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_VideoDCT2x2_S16_S16(mlib_s16 coeffs[4],
	   const mlib_s16 block[4]);

DESCRIPTION
       The  mlib_VideoDCT2x2_S16_S16()	function  computes the forward DCT for the destination DCT coefficients of data type mlib_s16 and a source
       block of data type mlib_s16. The input to the DCT routine is the difference between the current block and the reference block. The  differ-
       ence pixel can occupy nine bits and is represented as a 16-bit datum. The source and destination buffer addresses must be 8-byte aligned.

PARAMETERS
       The function takes the following arguments:

       coeffs	 Pointer to the destination DCT coefficients. coeffs must be 8-byte aligned.

       block	 Pointer  to  an 2x2 motion-compensated block that is the difference between the reference block and the current block. block must
		 be 8-byte aligned.

RETURN VALUES
       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       mlib_VideoDCT2x2_S16_S16(3MLIB),  mlib_VideoDCT4x4_S16_S16(3MLIB),  mlib_VideoDCT8x8_S16_S16(3MLIB),   mlib_VideoDCT8x8_S16_S16_B12(3MLIB),
       mlib_VideoDCT8x8_S16_S16_NA(3MLIB),  mlib_VideoDCT8x8_S16_U8(3MLIB),  mlib_VideoDCT8x8_S16_U8_NA(3MLIB), mlib_VideoDCT16x16_S16_S16(3MLIB),
       mlib_VideoDCT16x16_S16_S16_B10(3MLIB), mlib_VideoDeQuantize_S16(3MLIB), mlib_VideoDeQuantizeInit_S16(3MLIB), mlib_VideoQuantize_S16(3MLIB),
       mlib_VideoQuantizeInit_S16(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007					   mlib_VideoDCT2x2_S16_S16(3MLIB)